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Engines and Components Pistons and Piston Rings

Athena

Athena 08-13 Yamaha WR 250 F 76.97mm Bore Forged 4-Stroke Top End Piston Kit w/Top End Gasket

$259.95 $202.75 Save $57.20

SKU: A0EF P5F0770039007B

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Description

Part #: P5F0770039007B

Having two products in one kit that work perfectly together for an excellent result. Athena presents on the market the new Top End Piston Kit which includes a cast 2-stroke piston and the top end gasket kit. Athena studies, develops and tests internally all the technologies and materials of its pistons, while also engineering the entire development of compatible gaskets. After replacing a piston, this perfectly tuned kit offers very high performance and ensures maximum reliability.

MIA's Description

This Athena Top End Piston Kit includes a forged 4-stroke piston and a top-end gasket kit. The piston is made of a high-performance aluminum alloy with high silicon content for reliability, resistance, and performance. Its smooth profile ensures regular flow and perfect flame propagation. Some pistons have molybdenum disulfide coating on skirts to reduce friction. The piston rings (Made in Japan) have wear-resistant coatings (PVD or chromium nitride). Athena gasket kits are developed internally with strict production parameters.

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Specifications

BrandAthena
Part NumberA0EF P5F0770039007B

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Built for enthusiasts. Every order is backed by our 30 day return window on eligible items. Unused and uninstalled products may be returned with approved RMA and no restocking fees when received in new condition. Orders placed through the MOTORMIA app with a complete build qualify for our Fitment Guarantee — free return shipping if the part doesn’t fit your exact setup. The guarantee covers fit only; installation must follow manufacturer instructions, and we recommend a qualified shop for parts marked Difficulty 4–5.

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